Fiber Optic Troubleshooting Tools for CCTV and Network Installers Malaysia
Fiber Optic Troubleshooting Tools for CCTV and Network Installers Malaysia
CCTV and network installations in Malaysia are increasingly using fiber optic connections between buildings, security control rooms, network cabinets, factories, warehouses and remote equipment locations.
For technicians who previously worked mainly with RJ45 Ethernet cables and standard network testers, fiber introduces a different set of troubleshooting requirements.
A practical fiber toolkit may include a Visual Fault Locator, Optical Power Meter, Fiber Identifier and OTDR.
NOVKER offers several instruments that can help contractors gradually build this capability, including the NK100, NK120, NK200 and NK420.
The important point is not to buy every instrument immediately, but to understand what each fiber testing tool actually does.
Why CCTV Installers Need Fiber Testing Tools
A conventional CCTV installation may use Ethernet cable between cameras and switches.
However, larger projects can require fiber because the network must connect equipment across different buildings or remote areas.
A typical system may look like:
IP Cameras → PoE Switch → Fiber Link → Main Network → NVR / Control Room
If the remote cameras suddenly disappear from the network, technicians need to determine whether the problem is caused by:
Network equipment
Power supply
Fiber patch cord
Fiber connection
Physical cable damage
Optical signal problem
or another part of the system.
Having basic fiber test equipment allows the technician to investigate the fiber side instead of immediately assuming that the switch, camera or media converter is faulty.
Tool 1 – NOVKER NK100 10mW Visual Fault Locator
The NOVKER NK100 is a straightforward Visual Fault Locator.
Specified Output: 10mW
Power: Dry Battery
A VFL injects visible red laser light into the fiber.
The NK100 can assist with basic tasks such as fiber identification, continuity checking and investigation of certain accessible physical faults.
For a CCTV or network installer who only occasionally handles fiber, the NK100 can be a practical starting tool.
Tool 2 – NOVKER NK120 15mW Visual Fault Locator
The NOVKER NK120 performs the same general VFL function but comes in a different configuration.
Specified Output: 15mW
Power: Lithium Battery
It can be considered by technicians who perform fiber work more regularly or prefer the NK120 configuration.
The choice between NK100 and NK120 is therefore not simply about which one is “better.”
It depends on the user's application, preferred battery type and working requirements.
What Can a VFL Help a CCTV Installer Check?
Suppose the fiber link between a guardhouse and the main control room stops working.
A VFL can assist with several preliminary checks.
The technician may use it to identify the correct fiber, check continuity and inspect accessible patch cords or cable sections for certain visible physical faults.
A severe bend or break may sometimes produce visible red-light leakage.
However, a VFL does not measure optical power and does not provide OTDR-style distance-to-fault information.
Tool 3 – NOVKER NK200 Optical Power Meter
Once a contractor begins performing more fiber work, an Optical Power Meter becomes an important addition.
The NOVKER NK200 is used for optical power measurement.
This answers a different question from a VFL.
The VFL asks:
“Can I visually trace or identify a physical problem?”
The Optical Power Meter asks:
“What optical power am I receiving?”
For technicians troubleshooting network or CCTV fiber links, having both capabilities provides a more useful basic toolkit.
Tool 4 – NOVKER NK420 Fiber Identifier
As the number of fibers increases, technicians may also need a dedicated Fiber Identifier.
The NOVKER NK420 Fiber Identifier adds another troubleshooting function to the toolkit.
This becomes particularly relevant when technicians are working around existing fiber infrastructure and need suitable tools for identifying fibers without treating a basic VFL as the answer to every identification task.
The exact test method should always follow the instrument specifications and the requirements of the network being serviced.
Tool 5 – Pocket OTDR
An OTDR becomes important when the technician needs more advanced information about a fiber link.
For example:
A CCTV system uses fiber between a factory entrance and the security control room.
The link fails.
The accessible patch cords appear normal.
Basic VFL checks do not reveal the fault.
The technician now needs to determine whether there is an event somewhere along the installed fiber route.
This is where an OTDR becomes much more useful.
An OTDR can analyze events along a fiber and provide distance information under appropriate test conditions.
VFL vs OPM vs Fiber Identifier vs OTDR
| Instrument | Main Purpose |
|---|---|
| NOVKER NK100 | 10mW Visual Fault Locator |
| NOVKER NK120 | 15mW Visual Fault Locator |
| NOVKER NK200 | Optical Power Measurement |
| NOVKER NK420 | Fiber Identification |
| Pocket OTDR | Advanced Fiber Event / Fault Analysis |
These tools should not be treated as interchangeable.
Each one answers a different troubleshooting question.
Basic Fiber Toolkit for CCTV Installers
A CCTV contractor who only occasionally encounters fiber does not necessarily need to start with an advanced toolkit.
A practical starting combination can be:
NK100 + NK200
This provides:
Visual troubleshooting + Optical power measurement
For more regular fiber work, another combination can be:
NK120 + NK200
The contractor can then add an NK420 or OTDR as project requirements become more demanding.
Fiber Toolkit for Network Installers
Network contractors may need a broader range of instruments because they increasingly work with both copper and fiber networks.
A technician's equipment can progressively expand from:
LAN Cable Tester
to
Network Tester + VFL
then
VFL + Optical Power Meter
and eventually
VFL + OPM + Fiber Identifier + OTDR
This allows investment in test equipment to follow actual customer demand.
Example – CCTV Cameras in a Warehouse Are Offline
Consider a large warehouse with cameras connected through remote network switches.
One section suddenly goes offline.
The technician should not immediately conclude that the fiber cable is broken.
First, check the power supply, switches, network equipment, patch cords and connections.
If the suspected problem is on the fiber side, the technician can then use the appropriate fiber tester.
VFL can assist with visual checking.
Optical Power Meter can provide optical power measurement.
Fiber Identifier can provide dedicated fiber identification capability.
OTDR can be used when more advanced event and distance analysis is required.
This systematic approach reduces unnecessary guessing.
Example – Fiber Between Two Factory Buildings
Suppose Building A and Building B communicate through fiber.
After construction work, the network connection fails.
The technician can begin by inspecting accessible connections and patch cords.
The NK100 or NK120 VFL can assist with basic visual troubleshooting.
The NK200 Optical Power Meter can be used when optical power measurement is required.
If the problem remains unresolved and the technician suspects damage somewhere along the route, an OTDR may be needed.
Example – Identifying Fiber in a Network Cabinet
Another common problem is not a broken fiber at all.
A cabinet may contain multiple fibers with poor or missing labels.
Technicians need to determine which fiber belongs to the circuit they are servicing.
Appropriate fiber identification tools can make this process much easier than guessing or disconnecting random connections.
This is one reason a dedicated Fiber Identifier such as the NOVKER NK420 can become valuable as a contractor's fiber workload grows.
A Practical Troubleshooting Sequence
For many field situations, technicians can think in terms of increasing levels of diagnosis:
Visual Inspection
↓
VFL
↓
Optical Measurement
↓
Fiber Identification where required
↓
OTDR Analysis
Not every problem requires every instrument.
A damaged patch cord may be resolved during the first few steps.
A hidden fault along a long installed fiber route may require OTDR testing.
Fiber Tools for Data Centre Contractors
The same equipment categories can be relevant to contractors working in data centres and server rooms.
These environments may contain many fiber connections between network equipment, cabinets and communication infrastructure.
A VFL provides basic visual checking.
An Optical Power Meter adds measurement.
A Fiber Identifier provides another specialized diagnostic capability.
An OTDR provides more advanced analysis.
The correct instrument should always be selected according to the task rather than simply using the most expensive tester available.
Important VFL Laser Safety
NOVKER NK100 and NK120 are laser devices.
Never look directly into the VFL output port.
Never look into the end of a connected fiber while the VFL is operating.
Never point the laser toward another person's eyes.
Always follow the manufacturer's operating instructions and appropriate laser-safety procedures.
Fiber Optic Testing Equipment for CCTV & Network Installers Malaysia
MTM Precision supplies fiber optic and network testing equipment for CCTV installers, network contractors, fiber technicians, IT departments and maintenance teams in Malaysia.
Customers can enquire about:
NOVKER NK100 — 10mW Visual Fault Locator
NOVKER NK120 — 15mW Visual Fault Locator
NOVKER NK200 — Optical Power Meter
NOVKER NK420 — Fiber Identifier
Pocket OTDR — Advanced Fiber Troubleshooting
Enquiries are welcome from Kuala Lumpur, Selangor, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kedah, Perlis, Kelantan, Terengganu, Sabah and Sarawak.
Contact MTM Precision
MTM Precision Sdn. Bhd. (744811-A)
Telephone: +603-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com / enquiry@mtmpre.com.my
Website: www.mtmpre.com.my
Showroom & Service Centre:
No. 29-1 & 29-2, Jalan Bandar Lapan Belas,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia.
Expanding from CCTV and LAN testing into fiber optic troubleshooting? Contact MTM Precision for NOVKER VFL, Optical Power Meter, Fiber Identifier and OTDR solutions in Malaysia.
17 Sep 2026
